SAST Digital Car Voltage Display USB Charger

  • Sale
  • $15.00
  • Regular price


  • digitally read your car battery voltage through your car 12 volt socket
  • digitalized usb control charging function with read your phone amp to provide accurate charging power

How to read car battery:

1. Turn on your car acc mode.

2. Check your voltage reader

3. Normal healthy car battery falls in between 12-12.5V

Colour Available:
- Sliver
- Blue
- Red